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具有某种共同性质的圆的集合叫做圆系,它的方程叫做圆系方程.在解圆的有关问题时,利用圆系知识来求解,往往简捷明快,事半功倍.下面通过讨论几种常见的圆系方程,介绍圆系方程在求解圆方程中的一些应用.1常见的圆系方程1.1同心圆系方程①以(a,b)为圆心的同心圆系方程:(x
A collection of circles of a certain common nature is called a circle system, and its equation is called a circle equation. In the solution of a circle of problems, the use of circle knowledge to solve, often simple and neat, with less effort.Through the discussion of several common circles Department of equations, introducing some of the applications of the circular equations in solving the circular equations.1 Common circular equations 1.1 concentric equations ① concentric equations (a, b) as the center of the circle: (x